Evidence map›Paper›PMID 25409111›Full record

ArticleSleep2015

Cerebrovascular reactivity in young subjects with sleep apnea.

John Buterbaugh, Charles Wynstra, Natalie Provencio, Daniel Combs, Michael Gilbert, Sairam Parthasarathy

Open access · bronzeAbstract read
In one paragraph

Article in Sleep, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 4 pooled it
2.5field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 4 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Pooled it
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  10. Observational
  11. Review
  12. Article
  13. MRI evaluation of cerebrovascular reactivity in obstructive sleep apnea.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2020
    Article
  14. Review
  15. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

John ButerbaughSouthern Arizona Veterans Administration Health Care System, Tucson, AZ.
Charles WynstraSouthern Arizona Veterans Administration Health Care System, Tucson, AZ.
Natalie ProvencioSouthern Arizona Veterans Administration Health Care System, Tucson, AZ.
Daniel CombsArizona Respiratory Center, Tucson, AZ.
Michael GilbertSouthern Arizona Veterans Administration Health Care System, Tucson, AZ.
Sairam ParthasarathySouthern Arizona Veterans Administration Health Care System, Tucson, AZ.
Southern Arizona VA Health Care System · USUniversity of Arizona · US

Funding

Sleep Intervention During Acute Lung InjuryR01HL095748 · NHLBI · UNIVERSITY OF ARIZONA · PI PARTHASARATHY, SAIRAM · 2009 to 2013
$1.9M
NHLBI NIH HHS HL095748
6 · The paper itself

Abstract

STUDY

objectivesRegional brain alterations may be involved in the pathogenesis and adverse consequences of obstructive sleep apnea (OSA). The objectives for the current study were to (1) determine cerebrovascular reactivity in the motor areas that control upper airway musculature in patients with OSA, and (2) determine whether young patients with OSA have decreased cerebrovascular reactivity in response to breath holding.

designCase-control study.

settingAcademic center.

participantsTwelve subjects with OSA (age 24-42 y; apnea-hypopnea index 17; interquartile range [IQR] 9, 69 per hour) and control subjects (n = 10; age 29-44 y; AHI 2; IQR 1, 3 per hour). MEASUREMENTS AND

resultsSubjects underwent blood oxygen level-dependent functional magnetic resonance imaging (BOLD-fMRI) while awake, swallowing, and breath holding. In subjects with OSA, during swallowing, there was less activity in the brainstem than in controls (P = 0.03) that remained reduced after adjusting for cortical motor strip activity (P = 0.036). In OSA subjects, brain regions of increased cerebrovascular reactivity (38; IQR 17, 96 cm(3)) was smaller than that in controls (199; IQR 5, 423 cm(3); P = 0.01). In OSA subjects, brain regions of decreased cerebrovascular reactivity during breath hold was greater (P = 0.01), and the ratio of increased-to-decreased brain regions was lower than that of controls (P = 0.006). Adjustment for cerebral volumes, body mass index, and white matter lesions did not change these results substantively.

conclusionsIn patients with obstructive sleep apnea (OSA), diminished change in brainstem activity during swallowing and reduced cerebrovascular reactivity may contribute to the etiopathogenesis and adverse cerebrovascular consequences, respectively. We speculate that decreased cerebral auto-regulation may be causative of gray matter loss in OSA.

Indexed as

Breath HoldingAdultBody Mass IndexBrain StemCase-Control StudiesDeglutitionFemaleGray MatterHumansMagnetic Resonance ImagingMaleOxygenRespiratory SystemSleep Apnea, ObstructiveWakefulnessYoung AdultOxygencerebral autoregulationfunctional magnetic resonance imagingobstructive sleep apneasleep apneastroke

Identifiers

PMID25409111
PMCPMC4288605
OpenAlexW2328412654

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.